I am on an X1 Carbon, third generation (20BS006BMD) running 3.19.0-12-generic and can confirm that the button issue *is* fixed for me, and I do *not* have any problems with WiFi.
I am on an X1 Carbon, third generation (20BS006BMD) running 3.19.0-12-generic and can confirm that the button issue *is* fixed for me, and I do *not* have any problems with WiFi.